Graco MARK V

12 309277
Service
Fig. NO TAG. Soak all leather packings in SAE 30W oil
for 1 hour minimum prior to assembly. Stack male
gland (219) on piston rod. Alternately stack UHMWPE
(208) and leather (218) packings (note orientation) on
piston rod. Install female gland (217). Install piston
guide (216) (note orientation) on piston valve (210).
The special sealing patch on piston valve threads is
good for four repackings. Use Loctite on piston valve
threads after four repackings.
210
218
216
208
219
217
Not
used on
244197
used on
245889,
287946,
287814,
287815
ti3941a
1
1
244954, 246257, 245889; 208 and 218 are 203 and
223, respectively. 287946; 208 and 218 are 203
and 209, respectively.
1
Fig. 13
Note: Pump 287814 & 287815 do not use leather
packings in piston stack. Alternately stack blue
(208) and brown (218) packings on these pumps.
Fig. 10. Install ball (206) in piston rod. If Loctite is ap-
plied to piston valve threads, ensure that none gets on
ball. Install piston valve on piston rod.
Torque as follows:
27 +/–3 ft-lb (for model 244197)
55 +/–3 ft-lb (for models 244224, 244201, 244409,
245902, 245904, 287814, 287815)
120 +/– 6 ft-lb (for models 244954, 246257, 245889,
287946, 277068, 248736, 248971)
190 +/–10 ft–lb (for model 244957)
Fig. 14
206
7575A
Fig. 15. Grease piston packings and sleeve top edge.
Fig. 15
7578A
Fig. 16. Carefully slide piston assembly into top of
sleeve. Assure u-cup is not rolled over or damaged.
Fig. 16
7577A
Fig. 17. Grease top inch or two of piston rod that will
go through the cylinder throat packings.
7579A
Fig. 17